Physics · Optics and Illumination
The inverse square law of illumination states that the illuminance at a point on a surface is inversely proportional to the:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Solid angle subtended by the source
- 2Square of the luminous intensity
- 3Distance from the light source
- 4Square of the distance from the light source✓
Correct answer
Square of the distance from the light source
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